Drum-coating machine



Jan 6, 1931. c, mz 1,787,524

DRUM COATING MACHINE Filed Oct. 15, 1927 INVENTOR. Q

ATTORNEY Patentedv Jan. 6, 1931 UNITED STAT s 'PATENTg OFFICE I ROBERT C. HEINZMAN, F CINCINNATI, OHIO RUM-comma. MAc imn a plication med ems 15; 1927; iSeIiaI No. 226,404.

This invention relates to the conditioning of drums such as are used to ship various kinds of merchandise andv has special reference to a machine'for treating; drums and the like. Still more particularly the invention relates to a machine for smoothlyand' evenly coating theinterior of drums and the like. 7,

One important object 'of'th'e invention is to provide an improved and simplified general construction of such a machine wherein a drum may be evenly and uniformly coated on its interior and wherein the drum, either at rest orin the motion given it while being coated, may be treated with live steam or other aeriform fluid; A second important object of the invention is to provide a machine ofthis character in;

which a drum being treated may be -revolved on itsaxis and simultaneously re olv'edon an axis transversetheaxlsoftheadrum, the V tails of construction and combinations of parts hereinafter fully described, illustrated cally claimed.

acters of reference'indicate like parts in the several views, and: V

Figure 1 is a side elevation of the improved device, the casing for holding the drum being shown in dotted lines in order to more clearly bring out the construction.

Figure 2 is a detail section through the casing and parts inside thereofpn the line -22of Figure 1.

Figure 3 s an enlargeddetail taken diametrically through one of the supporting shafts which support the drum for rotation on its axis, the view showing certain parts: a

the arms of the chuck so that the size of the 100 associatedwith saidshaftl 7 frame 24 a fourarmed chuck 25.

in the-accompanying drawings and specifi- In the accompanying drawings like char- Figure 4: is. a detail section on, the line 44 of Figure 3. 1

'ln the present embodiment of the invention there is provided a pair of standards 10 arranged in spaced relation and on these standards are mounted the respective bearings 11 and 12. Rotatable in the bearing 11 is a shaft 13 onrthe outer end of which are the fast and loose pulleys 14: of the usual construction, the fast pulley being used to rotate'said shaft. Through the bearing 12 extends a hollow shaft 15 which is alined with the shaft-13 and these two shafts support a rectangular structural steel frame 16 here shown as being somewhat longer than. its

. width. 'l-iteach end of this structural steelv frame and disposed centrally of the end are certain bearing members indicated respectively at Hand 18. These members are bolted to theend members of the frame and revoluble in the member 17 is a sleeve 19 wherein slidesa, second, sleeve 20 which is adjusted Y longitudinally of the sleeve 19 by means of an adjusting screw 21 provided with a hand wheel22; The sleeve 20is provided with ahead23 which is fixed to one'end member of an interior frame 24 formed, like the outer frame, of structuralsteel. The' sleeve 19 has fixed on the'end which projects within this 7 In the'bearing 18 is mounted a sleeve 26 which 'is-provided withone or more ports 27 which communicate with an annular channel ,28, formed in the bearing 18. In this sleeve 26 is 'slidably'mounted a second orinner s5,

' sleeve 29which is adjusted'longitudinally of v the sleeve 26 by means of a screw 30 having an operating handle 31. Extending into this screw is a port 32 which communicates with a'passage 33 running through the screw to the inner end thereof and thus communieating with the interior of the sleeve 29. Connected'with the channel 28 through a port 34 i is a supply pipe 35 which extends upwardly andthrough the'hollow shaft 15 and is con- 95.

nected by a swivel joint 36 we supply main 37. On the sleeve 29 is fixed a'second chuck 25. These chucks are provided with jaws 38 which have a bolt and slotconnection with chuck can be adjusted to grip'anydiameter,

within the range of the apparatus, of drum 39.

Surrounding the inner frame, drum and chucks, is a casing 40 having two hinged sections or doors 41 which may be swung open on hinges 42 so as to afford access to the interior but which. doors, when closed, seal the casing in a substantially hermetic manneim Keyed on the sleeve 26 is a bevel gear .43

which meshes with a bevel gear 44 fixed on a shaft 45 supported in suitable bearings'onthe' frame 16. Extending along one of the side members of this frame is a second shaft" 4'6 and bevel gears 47 serveto connect-these two.

shafts 45 and 46. Mounted on the support 10 is a bracket 48 which has an arm surrounding the shaft 13 and immovably fixed to this bracket is a bevel gear 49 which meshes .with a bevel gear. 50' fixed on the shaft 46. Itlwill be obviousthat the shaft 13 rotates freely in the bevel" gear 49.

' In the operation of the device the doors are opened and the drum inserted in the casing 40. The chucks 25 are adjusted to bring them against the ends ofthe drum with the latter disposed centrally in the casing, the jaws 38 being adjusted to grip against the sides'of such drum. In treating a number of drums it. will be merely'necessar-y tofadjust zr-theljaws'38 for the proper diameter and then byamanipulating one wheel aseither the. wheel-22 or the wheel 31, the drums'may be gripped or freed as desired. Withthe drum in position thedoors 41 are closed. The belt,

which drives the device, is then. shifted on to the fixed pulley whereupon the frame 16 will I be. revolved .on' an axispassing through the axis of thedrum atright' angles thereto. As this'fra-me revolves the shaft 46 Willbe revolved because it will be carried around the fixed wheel 49.; The revolution of the shaft 46 will of course revolve the shaft-45 and this in turn through the gears'44 and 43 will revolvethe sleeve 26 and rotate the casing and drum on the axis of the latter. Obviously,

entirely smoothly over the entire inner surv faceof the drum. Similarly, the pipe 35 may be brought into communication witha source of steam and steam may be introduced.

There has thus been provided a simple and efiicient device of the kind described and for j the purpose specified.

It is obvious that minor changes may be made in theform and-construction of the inventionwithout departing from the material :Zspirit thereof.- Itlisnot, therefore, desired to confine the invention to the exact form herein shown and described, but it is desired to include all such as properly come within the scope claimed.

Having thus described the invention, what is claimed as new, is:

1. In a machineof the class described, a frame,.mountings in said. frame foradrum, a-casing. adapted for hermetic sealing, holders coacting with the mountings for the easing, means to-rotate-said frame on an axis transverse the axis of the casing, means to rotate the casing on its axis simultaneously with therotation of the frame, and means to introduce fluid directly into said casing through one mountingr duringthe rotation of said casing. r

2. In a machine of the class described,; a

frame, a drum holder mounted in said'fr'ame,

and including a "casing ,adaptedfor hermetic seahng, chucks 1n said'casing, means to support said casing rotatablyonits axis in said frame, means operable exteriorly of the supportingmeans-to adjust the. chucks toward and from each other,'means to rotate the casing. onits axis, and means; to rotate the frame on an axis transverse the axis of the casing.

3. In a machine of the class described, a

7 frame, a drum holdermounted in said frame and including a'casing adapted for hermetic sealing, chucks in said casing, means to sup port said casing Iotatably on ;its axisin said frame, means operableexteriorly ofthe sup;

- porting means 6Q: adjust the chucks toward and from-eacliiother, stub shafts on oppositesides of" said frame, bearings supporting.

said stub shafts, drivin means for one of; i

said stub'shafts, afi'xec'gear surrounding one of'thestub shafts, and gearing connecting said fixed ing meansfor the casing. a I

gearandi one of the support 4.- Ina machine of the class described, a I

frame, a drum holder mounted in said frame and includln i a casing adaptedfor hermetic seal1ng,;chuc s. lnsal-d casing, means to support said. casing rotatably on its axis in said frame, means operable exteriorly ofthe supporting means to adjust the chucks toward;

and from each other, means to rotate the. easmg on its axis, means to rotate the frame on an axis transverse the axis of the casing, and

means to introduce fluid into said casing during the rotation thereof.

5. In av machine'of the, class described, frame, a drum holder mounted in said frame and including a casing'a'dapted for hermetic sealing, chuckslin' said casing, means to support said casing rotatably on its axis in :said

frame, means operable exteriorly b'fthe'sup porting rneans'to adjust the chucks toward andfromeach other, stub shafts oil-opposite sides of said frame, bearings supporting said stub shafts,- driving means for one of said stub shafts, a fixed. gear surrounding: one of operable exteriorly of the element, and means sleeve, chucks mounted on the adjacent ends a of said sleeves and means externally of the frame for manually adjustingthe screws.

7 In a machine of the kind described, a rotatable element, means opposite each other for removably supporting a drum, and r0- tatable on an axis atright angles to the axis of rotation of the element, a sealing closure on the element for enclosing the drum, means for independently adjusting said means and effecting a fluid way through the element, one

of the first named means, and closurefor'direct communication with the drum.

8. The combination with a rotary frame, a casing supported within the frame, and retatable on an axis at right angles to the axis of movement of the frame, of clamping chucks for a drum within the casing, extensiblemembers for the chucks mounted at the axis of the casing, means manually operable exteriorly of the frame for actuating the members, and a fluid supply means having its path through one member and said means for direct communication with the drum when within the casing.

9. In combination, a casing having an opening for the admission of a drum and providedwith a closure for closing said opening, chucks within said casing for supporting a drum in'spaced relation to the casing walls, said chucks being provided with means operable from the exterior of the casing for effecting movement of the chucks toward and from each other, and means for mounting said casing to effect rotation thereof on axes at right angles to each other.

10. In combination, a casing having an opening for the admission of a drum and provided with a closure for closing said opening, chucks within said casing for supporting a drum in spaced relation to the casing walls, said chucks being provided with means operable from the exterior of the casing for effecting movement of the chucks toward and from each other, means for mounting said casing to effect rotation thereof on axes at right angles to each other, andcmeans to introduce fluid into said casing during rotation thereof.

' ROBERT C. HEINZMAN. 

